removed Fragment classes from MainActivity

- removed fragments
- removed unnecessary classes
- removed unnecessary code

app/src/main/java/com/example/ueberwachungssystem/Fragments/Fragment2.java

         Bundle args = getArguments();
         c = getContext();
         ListView listView = new ListView(c);
-        setContentView(R.layout.fragment2);
         listView.setAdapter(new MeinAdapter(c, getVideoFiles()));
         if (args != null) {
             text = args.getString(KEY_TEXT);

app/src/main/java/com/example/ueberwachungssystem/Fragments/Fragment3.java

-package com.example.ueberwachungssystem.Fragments;
-
-import android.os.Bundle;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.fragment.app.Fragment;
-
-import com.example.ueberwachungssystem.R;
-
-public class Fragment3 extends Fragment {
-    private String text;
-    private final static String KEY_TEXT = "KEY_TEXT" ;
-    private void log(String nachricht) {
-        Log.d(this.getClass().getSimpleName(), nachricht);
-    }
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
-        log( "onCreateView" );
-        View view = inflater.inflate(R.layout.fragment2, container, false );
-        TextView Sensor = (TextView) view.findViewById(R.id.Sensor);
-        Sensor.setText(text);
-        return view;
-    }
-    public static Fragment3 erstellen(String text) {
-        Fragment3 fragment = new Fragment3();
-        Bundle b = new Bundle();
-        b.putString(KEY_TEXT, text);
-        fragment.setArguments(b);
-        return fragment;
-    }
-    @Override
-    public void onCreate(Bundle bundle) {
-        super.onCreate(bundle);
-        Bundle args = getArguments();
-        if (args != null) {
-            text = args.getString(KEY_TEXT);
-            log("onCreate: text=" + text);
-        } else {
-            log("onCreate");
-        }
-    }
-}

app/src/main/java/com/example/ueberwachungssystem/MainActivity.java

     private TextView AoderA;
     private String auswahltext = "Wahl des Detektionsmodus";
     private String auswahlAoderA = "Wahl von Alarmmeldungen oder Auswahl von Alarmaufzeichnungen";
-
-    //Sensoren und Kommunikation
-    WifiCommunication communication;
     //Buttons
     private ToggleButton toggleKamera;
     private ToggleButton toggleAudio;
     private ToggleButton toggleBewegung;
 
-    //Überprüfungswerte
-    boolean wahr;
-    private void log(String nachricht) {
-        Log.d(this.getClass().getSimpleName(), nachricht);
-    }
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
     public void onClick(View v) {
         if (v == toggleKamera) {
             if (toggleKamera.isChecked()) {
-                wahr = true;
+
             } else {
-                wahr = false;
+
             }
         }
         if (v == toggleAudio) {
             if (toggleAudio.isChecked()) {
-                wahr = true;
+
             } else {
-                wahr = false;
+
             }
         }
         if (v == toggleBewegung) {
             if (toggleBewegung.isChecked()) {
-                wahr = true;
+
             } else {
-                wahr = false;
+
             }
         }
     }
-    @Override
-    protected void onPause() {
-        super.onPause();
-        communication.stopCommunication();
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-        communication = new WifiCommunication(1234);
-    }
-
     public void onClickZeigeFragment1(View view) {
         Button button = (Button) view;
-        log(button.getText() + " ausgewählt");
         zeigeFragment(fragment1.erstellen("Hier stehen dann die Alarme"));
     }
 
     public void onClickZeigeFragment2(View view) {
         Button button = (Button) view;
-        log(button.getText() + " ausgewählt");
         zeigeFragment(fragment2.erstellen("Hier stehen dann die Videos"));
     }
 

app/src/main/java/com/example/ueberwachungssystem/VideoListAdapter.java

-package com.example.ueberwachungssystem;
-
-import android.content.Context;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import java.io.File;
-import java.util.List;
-
-public class VideoListAdapter extends ArrayAdapter<File> {
-
-    public VideoListAdapter(Context context, List<File> videoList) {
-        super(context, 0, videoList);
-    }
-
-    @Override
-    public View getView(int position, View convertView, ViewGroup parent) {
-        if (convertView == null) {
-            convertView = LayoutInflater.from(getContext()).inflate(R.layout.list_item_video, parent, false);
-        }
-
-        File videoFile = getItem(position);
-
-        ImageView thumbnailImageView = convertView.findViewById(R.id.imageViewThumbnail);
-        TextView titleTextView = convertView.findViewById(R.id.textViewTitle);
-
-        // Set tag to identify the clicked item
-        convertView.setTag(videoFile.getAbsolutePath());
-
-        return convertView;
-    }
-}

app/src/main/res/layout-land/activity_main_land.xml

-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-</LinearLayout>

app/src/main/res/layout/fragment3.xml

-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:background="@android:color/holo_blue_light" >
-
-    <TextView
-        android:id="@+id/Sensor"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:textAppearance="?android:attr/textAppearanceLarge"/>
-
-    <TextView
-        android:id="@+id/Alarm"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/Sensor"
-        android:textAppearance="?android:attr/textAppearanceLarge"/>
-
-</LinearLayout>